Make default compression gABI compliant
All programs in binutils+gdb git repo now support gABI compression
with the SHF_COMPRESSED bit. This patch makes the zlib-gabi option
as compression default for gas, gold, ld and objcopy, instead of the
zlib-gnu option whose outputs are incompatible with gABI.
binutils/
* objcopy.c (copy_file): Set BFD_COMPRESS_GABI if not
zlib-gnu.
* doc/binutils.texi: Change --compress-debug-sections and
--compress-debug-sections=zlib to zlib-gabi.
binutils/testsuite/
* binutils-all/compress.exp: Update.
gas/
* as.c (parse_args): Make --compress-debug-sections and
--compress-debug-sections=zlib the same as
--compress-debug-sections=zlib-gabi.
* doc/as.texinfo: Change --compress-debug-sections and
--compress-debug-sections=zlib to zlib-gabi.
gold/
* compressed_output.cc (Output_compressed_section::set_final_data_size):
Make --compress-debug-sections=zlib the same as
--compress-debug-sections=zlib-gabi.
* testsuite/Makefile.am (flagstest_compress_debug_sections.check):
Expect ".debug_.*" with the SHF_COMPRESSED bit, instead of
".zdebug_".
* testsuite/Makefile.in: Regenerated.
ld/
* emultempl/elf32.em (gld${EMULATION_NAME}_handle_option): Make
--compress-debug-sections=zlib the same as
--compress-debug-sections=zlib-gabi.
* ld.texinfo: Change --compress-debug-sections=zlib to zlib-gabi.
ld/testsuite/
* ld-elf/zlibbegin.rS: Updated to .debug_.* with the
SHF_COMPRESSED bit.
* ld-elf/zlibnormal.rS: Likewise.
This commit is contained in:
H.J. Lu
parent
22121df01f
commit
19a7fe52ae
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@ -1,3 +1,10 @@
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2015-07-14 H.J. Lu <hongjiu.lu@intel.com>
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* objcopy.c (copy_file): Set BFD_COMPRESS_GABI if not
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zlib-gnu.
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* doc/binutils.texi: Change --compress-debug-sections and
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--compress-debug-sections=zlib to zlib-gabi.
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2015-07-10 H.J. Lu <hongjiu.lu@intel.com>
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PR binutils/18656
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@ -1844,10 +1844,9 @@ It can also be a useful way of reducing the size of a @option{--just-symbols}
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linker input file.
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@item --compress-debug-sections
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Compress DWARF debug sections using zlib. The debug sections are
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renamed to begin with @samp{.zdebug} instead of @samp{.debug}. Note -
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if compression would actually make a section @emph{larger} then it is
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not compressed or renamed.
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Compress DWARF debug sections using zlib with SHF_COMPRESSED from the
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ELF ABI. Note - if compression would actually make a section
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@emph{larger}, then it is not compressed.
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@item --compress-debug-sections=none
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@itemx --compress-debug-sections=zlib
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@ -1857,10 +1856,13 @@ For ELF files, these options control how DWARF debug sections are
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compressed. @option{--compress-debug-sections=none} is equivalent
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to @option{--nocompress-debug-sections}.
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@option{--compress-debug-sections=zlib} and
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@option{--compress-debug-sections=zlib-gnu} are equivalent to
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@option{--compress-debug-sections=zlib-gabi} are equivalent to
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@option{--compress-debug-sections}.
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@option{--compress-debug-sections=zlib-gabi} compresses
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DWARF debug sections with SHF_COMPRESSED from the ELF ABI.
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@option{--compress-debug-sections=zlib-gnu} compresses DWARF debug
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sections using zlib. The debug sections are renamed to begin with
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@samp{.zdebug} instead of @samp{.debug}. Note - if compression would
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actually make a section @emph{larger}, then it is not compressed nor
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renamed.
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@item --decompress-debug-sections
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Decompress DWARF debug sections using zlib. The original section
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@ -2607,7 +2607,7 @@ copy_file (const char *input_filename, const char *output_filename,
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ibfd->flags |= BFD_COMPRESS;
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/* Don't check if input is ELF here since this information is
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only available after bfd_check_format_matches is called. */
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if (do_debug_sections == compress_gabi_zlib)
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if (do_debug_sections != compress_gnu_zlib)
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ibfd->flags |= BFD_COMPRESS_GABI;
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break;
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case decompress:
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@ -1,3 +1,7 @@
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2015-07-14 H.J. Lu <hongjiu.lu@intel.com>
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* binutils-all/compress.exp: Update.
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2015-07-10 H.J. Lu <hongjiu.lu@intel.com>
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PR binutils/18656
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@ -39,7 +39,12 @@ if { ![binutils_assemble_flags $srcdir/$subdir/dw2-1.S ${compressedfile}.o --com
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return
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}
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set got [remote_exec host "cmp ${testfile}.o ${compressedfile}.o"]
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if { ![binutils_assemble_flags $srcdir/$subdir/dw2-1.S ${compressedfile}gnu.o --compress-debug-sections=zlib-gnu] } then {
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unsupported "compressed debug sections with zlib-gnu"
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return
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}
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set got [remote_exec host "cmp ${testfile}.o ${compressedfile}gnu.o"]
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# Use it to set up xfail.
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set exec_output [lindex $got 1]
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if [string match "" $exec_output] then {
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@ -136,8 +141,8 @@ if ![string match "" $got] then {
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# Xfail this test if there are no compressed sections.
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setup_xfail "$compression_used$target_triplet"
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set testname "objcopy compress debug sections in archive"
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set got [binutils_run $OBJCOPY "--compress-debug-sections ${copyfile}.a ${compressedcopyfile}.a"]
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set testname "objcopy compress debug sections in archive with zlib-gnu"
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set got [binutils_run $OBJCOPY "--compress-debug-sections=zlib-gnu ${copyfile}.a ${compressedcopyfile}.a"]
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if ![string match "" $got] then {
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fail "objcopy ($testname)"
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} else {
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@ -228,13 +233,13 @@ if { ![binutils_assemble_flags $srcdir/$subdir/dw2-1.S ${compressedfile}gnu.o --
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return
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}
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set src1 ${compressedfile}gnu.o
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set src1 ${compressedfile}gabi.o
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set src2 ${compressedfile}.o
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set status [remote_exec build cmp "${src1} ${src2}"]
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set exec_output [lindex $status 1]
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set exec_output [prune_warnings $exec_output]
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if ![string match "" $exec_output] then {
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fail "compressed debug sections with zlib-gnu"
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fail "compressed debug sections with zlib-gabi"
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return
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}
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@ -248,13 +253,13 @@ if { ![binutils_assemble_flags $srcdir/$subdir/dw2-2.S ${compressedfile2}gnu.o -
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return
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}
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set src1 ${compressedfile2}gnu.o
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set src1 ${compressedfile2}gabi.o
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set src2 ${compressedfile2}.o
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set status [remote_exec build cmp "${src1} ${src2}"]
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set exec_output [lindex $status 1]
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set exec_output [prune_warnings $exec_output]
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if ![string match "" $exec_output] then {
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fail "compressed debug sections with zlib-gnu"
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fail "compressed debug sections with zlib-gabi"
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return
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}
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@ -292,13 +297,13 @@ if { ![binutils_assemble_flags $srcdir/$subdir/dw2-3.S ${compressedfile3}gnu.o -
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return
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}
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set src1 ${compressedfile3}gnu.o
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set src1 ${compressedfile3}gabi.o
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set src2 ${compressedfile3}.o
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set status [remote_exec build cmp "${src1} ${src2}"]
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set exec_output [lindex $status 1]
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set exec_output [prune_warnings $exec_output]
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if ![string match "" $exec_output] then {
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fail "compressed debug sections with zlib-gnu"
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fail "compressed debug sections with zlib-gabi"
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return
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}
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@ -1,3 +1,11 @@
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2015-07-14 H.J. Lu <hongjiu.lu@intel.com>
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* as.c (parse_args): Make --compress-debug-sections and
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--compress-debug-sections=zlib the same as
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--compress-debug-sections=zlib-gabi.
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* doc/as.texinfo: Change --compress-debug-sections and
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--compress-debug-sections=zlib to zlib-gabi.
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2015-07-09 Catherine Moore <clm@codesourcery.com>
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* config/tc-mips.c (check_fpabi): Handle
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4
gas/as.c
4
gas/as.c
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@ -665,7 +665,7 @@ This program has absolutely no warranty.\n"));
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if (strcasecmp (optarg, "none") == 0)
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flag_compress_debug = COMPRESS_DEBUG_NONE;
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else if (strcasecmp (optarg, "zlib") == 0)
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flag_compress_debug = COMPRESS_DEBUG_GNU_ZLIB;
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flag_compress_debug = COMPRESS_DEBUG_GABI_ZLIB;
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else if (strcasecmp (optarg, "zlib-gnu") == 0)
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flag_compress_debug = COMPRESS_DEBUG_GNU_ZLIB;
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else if (strcasecmp (optarg, "zlib-gabi") == 0)
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@ -679,7 +679,7 @@ This program has absolutely no warranty.\n"));
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#endif
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}
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else
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flag_compress_debug = COMPRESS_DEBUG;
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flag_compress_debug = COMPRESS_DEBUG_GABI_ZLIB;
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break;
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case OPTION_NOCOMPRESS_DEBUG:
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@ -625,10 +625,10 @@ Begin in alternate macro mode.
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@end ifclear
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@item --compress-debug-sections
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Compress DWARF debug sections using zlib. The debug sections are renamed
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to begin with @samp{.zdebug}, and the resulting object file may not be
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compatible with older linkers and object file utilities. Note if compression
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would make a given section @emph{larger} then it is not compressed or renamed.
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Compress DWARF debug sections using zlib with SHF_COMPRESSED from the
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ELF ABI. The resulting object file may not be compatible with older
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linkers and object file utilities. Note if compression would make a
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given section @emph{larger} then it is not compressed.
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@ifset ELF
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@cindex @samp{--compress-debug-sections=} option
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@ -640,10 +640,13 @@ These options control how DWARF debug sections are compressed.
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@option{--compress-debug-sections=none} is equivalent to
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@option{--nocompress-debug-sections}.
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@option{--compress-debug-sections=zlib} and
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@option{--compress-debug-sections=zlib-gnu} are equivalent to
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@option{--compress-debug-sections=zlib-gabi} are equivalent to
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@option{--compress-debug-sections}.
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@option{--compress-debug-sections=zlib-gabi} compresses
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DWARF debug sections with SHF_COMPRESSED from the ELF ABI.
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@option{--compress-debug-sections=zlib-gnu} compresses DWARF debug
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sections using zlib. The debug sections are renamed to begin with
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@samp{.zdebug}. Note if compression would make a given section
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@emph{larger} then it is not compressed nor renamed.
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@end ifset
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@item --nocompress-debug-sections
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@ -1,3 +1,13 @@
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2015-07-14 H.J. Lu <hongjiu.lu@intel.com>
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* compressed_output.cc (Output_compressed_section::set_final_data_size):
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Make --compress-debug-sections=zlib the same as
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--compress-debug-sections=zlib-gabi.
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* testsuite/Makefile.am (flagstest_compress_debug_sections.check):
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Expect ".debug_.*" with the SHF_COMPRESSED bit, instead of
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".zdebug_".
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* testsuite/Makefile.in: Regenerated.
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2015-07-12 H.J. Lu <hongjiu.lu@intel.com>
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PR gold/18322
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@ -233,11 +233,10 @@ Output_compressed_section::set_final_data_size()
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enum { none, gnu_zlib, gabi_zlib } compress;
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int compression_header_size = 12;
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const int size = parameters->target().get_size();
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if (strcmp(this->options_->compress_debug_sections(), "zlib") == 0)
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if (strcmp(this->options_->compress_debug_sections(), "zlib-gnu") == 0)
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compress = gnu_zlib;
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else if (strcmp(this->options_->compress_debug_sections(), "zlib-gnu") == 0)
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compress = gnu_zlib;
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else if (strcmp(this->options_->compress_debug_sections(), "zlib-gabi") == 0)
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else if (strcmp(this->options_->compress_debug_sections(), "zlib-gabi") == 0
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|| strcmp(this->options_->compress_debug_sections(), "zlib") == 0)
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{
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compress = gabi_zlib;
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if (size == 32)
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@ -1353,9 +1353,9 @@ flagstest_compress_debug_sections.stdout: flagstest_compress_debug_sections
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$(TEST_READELF) -w $< | sed -e "s/.zdebug_/.debug_/" > $@.tmp
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mv -f $@.tmp $@
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# Check there are compressed DWARF .zdebug_* sections.
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# Check there are compressed DWARF .debug_* sections.
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flagstest_compress_debug_sections.check: flagstest_compress_debug_sections
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$(TEST_READELF) -SW $< | grep ".zdebug_" > $@.tmp
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$(TEST_READELF) -SW $< | egrep ".debug_.* C *" > $@.tmp
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mv -f $@.tmp $@
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# Compare DWARF debug info.
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@ -5618,9 +5618,9 @@ uninstall-am:
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@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(TEST_READELF) -w $< | sed -e "s/.zdebug_/.debug_/" > $@.tmp
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@GCC_TRUE@@NATIVE_LINKER_TRUE@ mv -f $@.tmp $@
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# Check there are compressed DWARF .zdebug_* sections.
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# Check there are compressed DWARF .debug_* sections.
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@GCC_TRUE@@NATIVE_LINKER_TRUE@flagstest_compress_debug_sections.check: flagstest_compress_debug_sections
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@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(TEST_READELF) -SW $< | grep ".zdebug_" > $@.tmp
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@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(TEST_READELF) -SW $< | egrep ".debug_.* C *" > $@.tmp
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@GCC_TRUE@@NATIVE_LINKER_TRUE@ mv -f $@.tmp $@
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# Compare DWARF debug info.
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@ -1,3 +1,10 @@
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2015-07-14 H.J. Lu <hongjiu.lu@intel.com>
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* emultempl/elf32.em (gld${EMULATION_NAME}_handle_option): Make
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--compress-debug-sections=zlib the same as
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--compress-debug-sections=zlib-gabi.
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* ld.texinfo: Change --compress-debug-sections=zlib to zlib-gabi.
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2015-07-14 Nick Clifton <nickc@redhat.com>
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* ld.texinfo (Options): Add missing period after @xref.
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@ -2223,7 +2223,7 @@ gld${EMULATION_NAME}_handle_option (int optc)
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if (strcasecmp (optarg, "none") == 0)
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link_info.compress_debug = COMPRESS_DEBUG_NONE;
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else if (strcasecmp (optarg, "zlib") == 0)
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link_info.compress_debug = COMPRESS_DEBUG_GNU_ZLIB;
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link_info.compress_debug = COMPRESS_DEBUG_GABI_ZLIB;
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else if (strcasecmp (optarg, "zlib-gnu") == 0)
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link_info.compress_debug = COMPRESS_DEBUG_GNU_ZLIB;
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else if (strcasecmp (optarg, "zlib-gabi") == 0)
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@ -2228,11 +2228,12 @@ hash tables. The default is @code{sysv}.
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@itemx --compress-debug-sections=zlib-gabi
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On ELF platforms , these options control how DWARF debug sections are
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compressed using zlib. @option{--compress-debug-sections=none} doesn't
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compress DWARF debug sections. @option{--compress-debug-sections=zlib}
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and @option{--compress-debug-sections=zlib-gnu} compress DWARF debug
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compress DWARF debug sections.
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@option{--compress-debug-sections=zlib-gnu} compresses DWARF debug
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sections and rename debug section names to begin with @samp{.zdebug}
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instead of @samp{.debug}. @option{--compress-debug-sections=zlib-gabi}
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compresses DWARF debug sections with SHF_COMPRESSED from the ELF ABI.
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instead of @samp{.debug}. @option{--compress-debug-sections=zlib}
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and @option{--compress-debug-sections=zlib-gabi}
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compress DWARF debug sections with SHF_COMPRESSED from the ELF ABI.
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@kindex --reduce-memory-overheads
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@item --reduce-memory-overheads
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@ -1,3 +1,9 @@
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2015-07-14 H.J. Lu <hongjiu.lu@intel.com>
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* ld-elf/zlibbegin.rS: Updated to .debug_.* with the
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SHF_COMPRESSED bit.
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* ld-elf/zlibnormal.rS: Likewise.
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2015-07-09 Catherine Moore <clm@codesourcery.com>
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* ld-mips-elf/attr-gnu-4-08.d: Update expected output.
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@ -1,3 +1,3 @@
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#...
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+\[[ 0-9]+\] .zdebug_.* +(PROGBITS|MIPS_DWARF) +0+ +[0-9a-f]+ +[0-9a-f]+ [0-9a-f]+ +0 +0 +1
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+\[[ 0-9]+\] .debug_.* +(PROGBITS|MIPS_DWARF) +0+ +[0-9a-f]+ +[0-9a-f]+ [0-9a-f]+ +C +0 +0 +1
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#pass
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@ -1,3 +1,3 @@
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#...
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+\[[ 0-9]+\] .zdebug_.* +(PROGBITS|MIPS_DWARF) +0+ +[0-9a-f]+ +[0-9a-f]+ [0-9a-f]+ +0 +0 +1
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+\[[ 0-9]+\] .debug_.* +(PROGBITS|MIPS_DWARF) +0+ +[0-9a-f]+ +[0-9a-f]+ [0-9a-f]+ +C +0 +0 +1
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#pass
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